Thallium in California Drinking Water
53 public water systems in California have historical EPA violation records associated with thallium in the Q2 2026 snapshot.
173
Historical Records in California
53
Systems With Records
About Thallium
- EPA Limit
- 2 ppb
- Category
- Inorganic
- Health Effects
- Hair loss, kidney, intestine, liver problems
- Common Treatment Approaches
- Ion exchange, activated alumina
California Systems With the Most Thallium Records
San Felipe Pueblo
4,335 served1 historical record
A
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.